Dielectric Coating-Induced Absorption Enhancement in Si Nanowire Junctions

The effi cient photon management in nanowires coupled with tunable absorption can provide a signifi cant advancement in the current solar cell technology. Adding a shell on the nanowire (NW) offers an extra degree of freedom for tailoring the NW absorption. Calculations are performed to study the shell-induced changes in the core absorption of an ideal Si nanocylinder after enclosing it with co…